baber/WOPTO huggingface dataset:
Patent GB-1256312-A (GB)
Title: Scoring tool
Inventor: STIER EKKEHARD
IPC: B31B50/25
Filed: 1969-05-22
Abstract: 1,256,312. Scoring cardboard. UNILEVER Ltd. 22 May, 1969 [28 May, 1968], No. 26146/69. Heading B6J. A device for producing a double score line on cardboard comprises a female die on which the cardboard 10, Fig. 2, is laid, consisting of a base 7 and two underlays 6 fixed thereto and defining between them the scoring groove, and a male die 1 including a flat middle section 3 and two outside scoring rims projecting therefrom and having flat surfaces 4. In operation, the cardboard 10 is formed with two score lines 14, and the two end portions 15, 16, Fig. 4, can be bent downwards as shown, leaving a smooth outer surface 11, 12. The surfaces 3, 4 are connected by portions sloping at 45 degrees.
Patent GB-989786-A (GB)
Title: Improvements relating to circuit arrangements for producing a sawtooth waveform, especially for frame output stages of television receivers
IPC: H03K4/43
Filed: 1961-07-20
Abstract: 989,786. Valve sawtooth circuits. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. July 20, 1961 [July 20, 1960], No. 26313/61. Heading H3P. A circuit for feeding an S-shaped current saw-tooth waveform through deflection coils of a cathode-ray tube comprises a valve having the coils coupled to the anode and negative feedback via a series capacitor from anode to control electrode, a linearity control being connected between the side of the capacitor remote from the anode and a point of reference potential. As shown in Fig. 1, negative feedback paths are provided via a resistor 15 and via a differentiating circuit 9, 11, 12 and an integrating circuit 13, 5, 6. The feedback via resistor 15 tends to provide S-correction for wide-angle tubes at the beginning of the scan, resistor 12 being adjusted to provide overall correction. In Fig. 5 the saw-tooth waveform across capacitor 5 is predistorted by components 6, 19, 30 so that linearity and S-correction may be simultaneously adjusted by ganged controls 12, 30. In Fig. 6 (not shown), resistor 12 is fixed and shunted by two terminals of a potentiometer, the third terminal of which is connected to the lower end of resistor 19. In Fig. 4 (not shown), the feedback path includes an adjustable high pass filter comprising two capacitors, and a variable resistor.
Patent GB-989239-A (GB)
Title: Improvements in or relating to trace reading devices
Inventor: GREEN KENNETH WALTER
IPC: G08C21/00
Filed: 1962-07-10
Abstract: 989,239. Perforating appliances. WESTLAND AIRCRAFT Ltd. Oct. 9, 1963 [July 10, 1962], No. 26389/62. Heading B4B. [Also in Division G4] A stylus 28 for piercing a paper chart in an electric ordinate measuring system (see Division G4) is so arranged that as it is pressed against the paper it is rotated by a spiral 31. At the end of the stroke a contact pair 33-34 is closed to initiate the electric measuring operation.
Patent GB-860026-A (GB)
Title: Improvements in and relating to resilient valves for fluids under pressure
IPC: F16K7/14
Filed: 1957-08-21
Abstract: 860,026. Valves. REGIE NATIONALE DES USINES RENAULT. Aug. 21, 1957 [Oct. 18, 1956], No. 26463/57. Addition to 846,271. Class 135. The valve according to the parent Specification (see particularly the embodiment of Fig. 7) is improved in that the bottom portion 12, 15 of the resilient cup-shaped valve member constitutes a piston-like part which bears on the inner wall surface of the housing, and fluid pressure from the inlet 4 can pass through the wall of the cup above the part 12, this wall being formed, e.g. by a number of circularly spaced resilient lamellµ 16, so as to act on a shoulder 26 of the valve member to facilitate actuation of the valve. The previous vent ports are replaced by an annular vent chamber 7, and an outlet from this chamber is closed by a separate resilient non-return valve sleeve 9.
Patent GB-1102727-A (GB)
Title: Milling cutters
Inventor: BENTON CLIFFORD LESLIE
IPC: B23C5/22
Filed: 1965-06-23
Abstract: 1,102,727. Milling-cutters. RICHARD LLOYD Ltd. 17 May, 1966 [23 June, 1965], No. 26478/65. Heading B3K. A milling-cutter comprises a body 1 having a circular recess 2 in its front face to provide an annular ridge 3 which is slotted to receive throw-away tips 5, all the tips being seated and located on a ring 8 fitting into the recess. The tips are secured by wedges 6 operated by screws 17 in the body or in the ring.
Patent GB-1201397-A (GB)
Title: Improvements in or relating to compositions for the treatment of molten iron
IPC: C21C1/02
Filed: 1968-06-04
Abstract: 1,201,397. Treating iron. JRNFÍRDLING A.B. June 4, 1968 [June 8, 1967], No.26527/68. Heading C7D. A composition for treatment of molten iron consists of a mechanical mixture, compacted into solid porous bodies of at least magnesium, which is the alloying agent, and sponge iron as a reaction retarding agent. Magnesium may comprise 4-40 and preferably 5-25 per cent of the weight of the porous bodies, the latter having densities of 2-4, but preferably 3 grams per cc. Other additives may be present in the compact amounting to 0À5 per cent by weight of any of cerium, mischmetal, ferrosilicon, graphite and "slag binders. "
Patent GB-224885-A (GB)
Title: Improved manufacture of lustrous artificial threads
IPC: D01F2/08
Filed: 1924-11-07
Abstract: For the manufacture of lustrous threads of 2.5-6 deniers from viscose solutions of the normal degree of maturity, the precipitating-bath used contains 110-160 grams of sulphuric acid per litre and a quantity of salt, such as glaubers salt, such that the specific gravity of the bath is 1.32-1.42.  By the use of this bath the whole range of degrees of fineness above specified can be made with the one composition of the bath, it being sufficient only to vary the rate of feed of viscose solution to the spinning-nozzles.  It is preferred to employ a spinning length of 10-15 cms. and nozzles of 0.1 mm. diameter, and to use the bath at a temperature of 47-50 DEG  C.; and it is advantageous to use a second bath which contains 5 per cent sulphuric acid and consists of the precipitating-bath diluted.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use of the bath with viscose solutions in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-247637-A (GB)
Title: Improvements in and relating to the manufacture of metal hollow-ware
IPC: B21D17/04
Filed: 1925-06-19
Abstract: 247,637. Joseph, Ltd., N. C., and Joseph, B. C. Jnne 19, 1925. Die-rolling.-Hollow-ware such as a cannister o is embossed by placing it over one of a pair of complementary embossed or engraved rollers m geared together at e, the distance between the rollers being adjustable by turning a screw h to free the slidable bearing g so that the shaft a can be tilted up on end by rocking the handle l of a cam disc k, loosely mounted on the shaft a and bearing against the shaft b. The bearing of the shaft a in the standard d allows a limited rocking movement. The shaft b is rotated by a handle through reduction gearing f<1>. Fig. 3 shows a modification in which the upper shaft a' is supported in bearings q carried on a bracket pivoted at s. A screw u in a fixed boss v adjusts the pass, the left hand bearing q being urged upwardly by a leaf spring x. A lug w on the bracket r works over the end face of the boss v and guides the bracket. The rocking movement of the bracket h about the pivot s is limited so that the gears e<1> remain in mesh and retain register of the rollers t.
Patent GB-862822-A (GB)
Title: Improvements in and relating to electro-acoustic transducers
IPC: H04R19/00
Filed: 1958-08-20
Abstract: 862,822. Loud-speakers. PHILCO CORPORATION. Aug. 20, 1958 [Aug. 20, 1957; Dec. 20, 1957], No. 26769/58. Class 40 (4). An electrostatic loud-speaker has two like component parts facing one another with the moving electrodes closely air-coupled and driven in the same direction by a push-pull circuit. Two loud-speaker units such as are described in Specification 795,962 are assembled face-to-face as shown in Fig. 1, the fixed electrodes 14 being electrically connected to a polarizing battery. The diaphragms are fed by a push-pull circuit 25<SP>1</SP> and are spaced from the fixed electrodes by threads or wires 17, Fig. 3. The diaphragms are tensioned by spring-pressed bars 20 and are spaced from one another by members 23. A continuous sleeve-like diaphragm 123 may enclose a pair of perforated metal plates 129, Figs. 10, 11, the metal plates being insulated from one another and fed by the push-pull amplifier. Tension in the diaphragm is achieved by pressing the metal plates laterally under spring action. Alternatively the metal plates may be separated by insulating wedge-shaped members 121c, Fig. 16.
Patent GB-409994-A (GB)
Title: Improvements in or relating to washing boilers or the like
IPC: D06F1/00
Filed: 1933-09-29
Abstract: 409,994. Washing - boilers. DARBY, H. G., 39, Broad Street, Birmingham. Sept. 29, 1933, No. 26812. [Class 64 (i).] A boiler comprising a liquid-containing vessel 1, a surrounding jacket 19 and an outermost body 8 has projections or ribs pressed from the jacket 19 or wall of the vessel 1 to bridge the space between the jacket and vessel, so breaking into streams the rising heating gases. The wall of the vessel may be pressed to form corrugations or channels extending upwardly from the base to a position adjacent the upper end of vessel and forming ribs extending into or across the space between the vessel and jacket. The jacket is metallic and has an outer asbestos coating 20 which may be held in place by a sleeve 29 and is spaced from the outer body 8. Flue gas collects in an annular space 24 and passes out by a pipe 34. The top of the vessel 1 is bent outwards to a horizontal flange 6 covered by a top ring 10 secured by screws 12 to the outer body. Access is given to a gas burner 16 arranged in a central hole in base plate 13 by a hole 35. The vessel 1 may be pressed out or the jacket 19 pressed in, at a number of points so that the two contact.
Patent GB-436110-A (GB)
Title: The manufacture of heterocyclic compounds
IPC: C07D209/86
Filed: 1934-09-19
Abstract: Compounds containing a carbazole radicle are prepared by heating in the absence of hydrogen a mixture of a hydrogenated compound containing a carbazole radicle and as substance absorbing hydrogen, a phenol, aldehyde, carbon oxide or unsaturated aliphatic compound, with the addition of a hydrogenation catalyst.  The hydrogenated carbazole derivatives are completely dehydrogenated in the heterocyclic ring system. In examples: (1) tetrahydrocarbazole and phenol are heated together in an autoclave at 200--230 DEG  C. in presence of a nickel-bleaching earth catalyst; phenol may be replaced by resorcinol; 6 - methyl - 1 . 2 . 3 . 4 - tetrahydrocarbazole may similarly be converted to 3-methylcarbazole; (2) tetrahydrocarbazole and naphthalene are heated in an autoclave in presence of a nickel hydrogenation catalyst at 230 DEG  C. to give carbazole; (3) 1.2.3.4-tetrahydro-1-methylcarbazole and cyclohexene are heated in an autoclave at 220--230 DEG  C. in presence of a nickel hydrogenation catalyst containing copper in the proportion Ni : Cu = 10 : 1 to give 1-methylcarbazole; (4) N-cyclophenyltetrahydrocarbazole (prepared by condensing cyclohexanone with asymmetrical phenylcyclohexylhydrazine followed by ring closure by boiling with acetic acid) is treated at 180--220 DEG  C. as in (3); N-cyclohexylcarbazole is formed but by working under stronger reaction conditions N - phenylcarbazole is obtained.  Specifications 337,821, [Class 2 (iii)], and 409,732 are referred to.
Patent GB-245884-A (GB)
Title: Improvements in shaft couplings
IPC: F16D1/05
Filed: 1924-11-12
Abstract: 245,884. Wolseley Sheep Shearing machine Co., Ltd., and Picken, G. Nov. 12, 1924. Shaft couplings.-Shafts B are coupled by a sleeve A secured frictionally thereon by tapered bushes C, which are radially divided into three sections and thrust into the coned ends d of the sleeve by internal nuts D. These nuts have grooves m for engagement with a spanner and co-operate by annular ribs j with grooves h in the bushes 0 to withdraw them. Shafts of different diameters may be coupled by employing bushes with appropriate bores. The internal surfaces of the bushes may be longitudinally grooved to increase their grip. According to the Provisional Specification, the bushes may be of other than cylindrical shape internally to fit correspondingly shaped shafts.
Patent GB-1186588-A (GB)
Title: Improvements in or relating to Graphic Telecommunication Equipment
IPC: G08C21/00
Filed: 1967-06-12
Abstract: 1,186,588. Writing telegraphs. NIPPON ELECTRIC CO. Ltd. June 12, 1967 [June 10, 1966], No.27011/67. Heading G1N. In a writing telegraph where in recording paper at a transmitter is manually advanceable, there is provided an inter-locking arrangement whereby the paper at the transmitter cannot be advanced without also advancing the paper at the receiver thus preventing over-writing an already filled area. The recording paper at the transmitter is fed by friction rolls 28, 29 (Fig. 2) manually rotatable by turning a knob 5 and normally locked by a brake engaging a disc on the same plindle as the rolls (illistrated Figs. 3, 4 not shown). To release the brake, a ball pen or other writing instrument, while still engaged in a hole 13 in a link mechanism 9, 8, is moved into a triangular zone 14 of a writing platen 31, so that during its movement it engages and moves a crank lever 6 fixed to a spindle 15. The resulting spindle 15 rotation releases the brake mechanism. At the same time the link mechanism movement transmitted through a lever 10 operates a micro-switch unit 11, 12 which remotely initiates and controls the feed of recording paper at the receiver in a known manner not described. The locking mechanism becomes automatically effective again after one complete turn of knob 5 has fed out the used portion of the paper at the transmitter. The link mechanism is coupled to two convertors in known manner (not described) which generate position signals corresponding to X - Y directions depending on movement of the pen.
Patent GB-742965-A (GB)
Title: Improvements relating to means for destroying growing bracken and similar weed growths
Inventor: HOLT VERNON HARRISON
IPC: A01B29/00
Filed: 1953-10-02
Abstract: 742,965. Bracken-breakers. HOLT BRACKEN BREAKER CO., Ltd. July 28, 1954 [Oct. 2, 1953], No. 27080/53. Class 6 (3). A bracken-breaker bar, of the type adapted to be dragged over the ground by drag-chains at its ends, comprises a multi-sided core 1 of cast iron encased by a harder sheath of corresponding internal cross-section built up of steel plates 5 welded together with a portion 5a of each plate projecting beyond the plane of the adjacent plate to furnish a non-radial crushing edge. Each of these edges may be provided with a hardened tip 7 by weld-deposition. The core has journal-flanges at its ends for the reception of the drag-chains.
Patent GB-492790-A (GB)
Title: Improvements in the manufacture of hydrogen peroxide
IPC: C01B15/03
Filed: 1937-10-06
Abstract: Hydrogen peroxide is continuously obtained by causing a p  suspension of finely divided potassium persulphate in sulphuric acid to travel under the influence of reduced pressure through a heated vessel in which the persulphate becomes dissolved in the acid and then through a pipe system in which the persulphate is hydrolysed and the resulting hydrogen peroxide is vaporized, the vapours being separated from the liquid residue and condensed.  As shown, potassium persulphate and sulphuric acid are introduced into a stirred tank 1 and the resulting suspension travels under the influence of reduced pressure through a pipe 4 into a heated vessel 5 in which <PICT:0492790/III/1> its velocity of flow diminishes.  A temperature of 70 DEG  C. may be maintained in this vessel.  The velocity of flow is regulated by a cock 8.  The mixture containing potassium persulphate in solution then rises through a vertical pipe 9 heated to about 70 DEG  C. wherein partial concentration of the liquid and partial hydrolysis of the persulphate occur.  The resulting vapours of water and hydrogen peroxide escape through a branch pipe 14 while the mixture passes through a horizontal pipe 12 heated to about 80 DEG  C. in which the hydrolysis is completed and the hydrogen peroxide produced is vaporized, the vapours passing through a duct 17 while the residual acid solution of potassium sulphate falls through a heated barometric column 20 overflowing through 23 into a tank 24. The liquor in this tank is crystallized, the sulphuric acid mother liquor being returned to the tank and the separated potassium sulphate being re-converted by electrolyses into persulphate.  The branch pipe 14 communicates with a vessel 15 and a horizontal pipe 16 opening on to a duct 19 which is connected to a receiver for collecting the condensate and with a vacuum pump.  The duct 17 also communicates with the duct 19 through an expansion vessel 18.
Patent GB-1512647-A (GB)
Title: Device for measuring slope parameters for a material contained inside a cylinder rotated about the axis thereof
IPC: G01B7/30
Filed: 1975-06-26
Abstract: 1512647 Determining material slope angle by absorption CIMENTERIES CBR CEMENTBEDRIJVEN 26 June 1975 [1 July 1974] 27190/75 Heading G1A The slope angle α of material 5 in a rotating furnace is determined from the outputs of sensors 8a, b receiving radiation via the material from a radio-active source or sources e.g. a gamma ray source 1. In the embodiment of Fig. 2 the source 1 and sensors are fixed and a third sensor 8<SP>c</SP> receives radiation that has passed only through the steel tube 2, fire brick 3 and crust 4. Signals from the sensors pass to an impedance-matching preamplifier 9, a stabilized D.C. high-voltage power unit 10, a  pulse counting and integrating unit 11, a current-tovoltage converter 12 and a computer 13. From the sensor signals and the absorption coefficients of the different materials the computer determines the thicknesses el, e2 of the material segment and from these and the geometry of the arrangement the quantity tan α. The computer may automatically control the fuel flow 27 via an analogue or digital regulator 26. In a second embodiment Fig. 3 (not shown) the source 1 and sensors are mounted on a ring (20) surrounding the furnace and the sensor signals control the rotational position of the ring via a comparator (23) and servo (22) to maintain the sensor signals in balance and hence the axis (21) of the radiation beam substantially at right angles to the material surface. The ring rotation and hence slope angle α is sensed by an angle transmitter (25) coupled to the servo (22).
Patent GB-1216444-A (GB)
Title: Solid abrading tool with fiber abrasive
IPC: B24D5/00
Filed: 1969-05-29
Abstract: 1,216,444. Abrasive tools. BARNES DRILL CO. 29 May, 1969 [1 July, 1968], No. 27305/69. Heading B3D. An abrading tool, such as a honing stone, grinding wheel, or cut-off wheel comprises a body of solid and wearable matrix material having at least one face for engaging a workpiece, and an array of elongated fibres 33 of abrasive material embedded in the body and having ends exposed at the working face in a preselected pattern, the fibres being anchored in the body and braced for a substantial distance therein and having a hardness greater than that of the matrix material. The fibres may be of boron nitride, boron carbide, silicon carbide, titanium carbide, alumina tungsten carbide or zirconium or other abrasive having a Knoop hardness above 1000, and may have a diameter of 0À004 or 0À008 inch and are formed by vapour deposition on a tungsten filament 34 of 0À0005 inch diameter. The fibres are arranged in rows with the fibres is staggered to eliminate forming lines on the workpiece in a matrix of polymide material or epoxy. The fibres may be disposed perpendicularly or at an angle to the working surface. As applied to a grinding wheel, the fibres 42, Fig. 9, may be arranged radially when the periphery of the wheel is to be used, in which case they also act as a reinforcement for the wheel, or may be arranged parallel to the axis of the wheel, Fig. 11, when the end surface of the wheel is to be used. The abrading tool may be in the form of a honing stone 10, Fig. 3, for use in a tool for honing a bore 14, Fig. 2, in a workpiece 15, the tool having four stones which can be radially adjusted by conical portions 22 on a rod 23 axially adjustable relative to a hollow shaft 24 which rotates and reciprocates the tool.
Patent GB-261171-A (GB)
Title: Improvements in apparatus for measuring linear dimensions
IPC: G01B5/00
Filed: 1925-10-31
Abstract: 261,171. Simpson, J., and Glen, J. Oct. 31, 1925. Linear-dimension gauges. - A calliper gauge comprises a graduated beam A having fixed and sliding jaws B, C through which pass a sliding rod D having one end bearing against a spring E and the other against a graduated cam dial F, the sliding jaw being provided with a pointed lock screw G adapted to engage with one of a series of countersunk holes D<1> in the rod so as to lock the sliding jaw to the rod which is then moved to a fine adjustment by the cam disc F. In the form shown in Fig. 2, the beam A is carried on supports A<1> one of which is provided with an extension A<3> to carry the pivot F<1> for the cam. In a modification the cam is mounted on the beam which is not mounted on supports. In a modification shown in Fig. 5, the fixed jaw B is in one with the beam I, the sliding jaw C being in one with the rod D which is held against the cam by a cord T and weight S. The cam spindle is formed as a nut which may be traversed longitudinally of the beam by a screw J. In a 'further modification the fixed jaw B is secured to the beam and carries at that end the cam disc. The sliding jaw may be secured to the rod by the conical screw engaging the countersunk holes.
Patent GB-1465530-A (GB)
Title: Adherent film forming high internal phase ratio emulsion
IPC: A61K9/70
Filed: 1974-02-19
Abstract: 1465530 Hand cleaning emulsion; wax polish PETROLITE CORP 19 Feb 1974 27394/76 Divided out of 1465528 Headings C5D and C5W [Also in Division C3] A cleaning composition, e.g. a hand cleaner or a wax polish comprises a thixotropic emulsion wherein the internal phase constitutes at least 80% of the emulsion, said emulsion including an emulsifying agent and being free of thickeners. The composition may also include soap. Examples disclose (4) a hand cleaner comprising kerosene, diglycol oleate, emulsifier, water, glycerine and perfume and (5) a wax polish comprising kerosene, wax, diethylene glycol monooleyl ether and water.